17 juillet 2010
6
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/07
/juillet
/2010
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What is Earth Day ?
http://www.globio.org/glossopedia/article.aspx?art_id=35#
When is Earth Day ?
Every year on April 22nd , 192 countries take action for Earth Day. Pledge an act, Save our planet !
How your school can get involved ?
https://org.salsalabs.com/o/1807/images/K-12%20Schools%20Toolkit%202014%20-%20Earth%20Day.pdf